Head and neck cancer in Germany: a site-specific analysis of survival of the Thuringian cancer registration database - Guntinas-Lichius, O; Wendt, T; Buentzel, J; Esser, D; Lochner, P; Mueller, A; Schultze-Mosgau, S; Altendorf-Hofmann, A (Journal of cancer research and clinical oncology, 2010)